Box harp



FIG. 1 is a top plan view of a box harp showing my new design, the bottom being plain;

FIG. 2 is a left side elevational view;

FIG. 3 is a right side elevational view;

FIG. 4 is a top plan view; and

FIG. 5 is a bottom plan view. 

The ornamental design for a box harp, as shown and described. 